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Updated: June 20, 2025
Tail-sluices are always large, long and paved with stones; and sometimes they are double, so that one side may be cleaned up while the other continues washing. In a branch of the Yuba there is, or was not long since, a tail-sluice twenty feet wide. Tunnel-Sluice. A tunnel-sluice is a sluice in a tunnel.
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